Parachute canopy and electrical telegraph: what they have in common

1. Step 1. Parachute canopy — is part of — Parachute. Cloth that creates air resistance.
2. Step 2. Parachute — uses — Drag. The canopy creates drag.
3. Step 3. Drag — is used in — Golf ball. The dimples reduce drag.
4. Step 4. Golf ball — is made of — Gutta-percha. “Gutty” balls were gutta-percha.
5. Step 5. Gutta-percha — is part of — Transatlantic cable. Insulation.
6. Step 6. Transatlantic cable — is a kind of — Electrical telegraph. A telegraph line.

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